ASP is a micro$oft invention, so IIS for win 2k server supports asp by default, and win 2k client includes a version of IIS that can support up to 5 concurrent users. It's possible to get it to run php too, but certainly by default it will run active server pages.
as for php and access, yes it's possible. You need ODBC drivers (which are installed as part of access), and if you serach the manual for ODBC (or just microsoft access even) you'll turn up a lot of useful stuff.